S-91013A736 0.766" ID x 1.265" OD ASME B18.21.1 Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance due to the split lock design, preventing fastener loosening in high-stress environments
• Lightweight and corrosion-resistant aluminum construction for improved durability and longevity in various industrial conditions
• Precise dimensional fit with 0.766" ID and 1.265" OD, ensuring secure fastening on 3/4" screws without slippage
• Exceptional mechanical strength with Rockwell B87 hardness, providing reliable performance under heavy loads
• Industry-standard compliance with ASME B18.21.1 specifications, guaranteeing consistent quality and interchangeability
• Environmental responsibility through full RoHS 3 and REACH compliance, meeting strict regulatory requirements
• Optimized thickness of 0.188" for balanced spring action and effective locking performance

Professional Applications & Engineering Value

This aluminum split lock washer delivers critical engineering solutions where vibration-induced fastener failure is a primary concern. The standard split lock design creates continuous spring tension that counters rotational loosening, making it ideal for machinery, automotive assemblies, and electrical enclosures subject to constant motion. The aluminum material provides excellent corrosion resistance while maintaining Rockwell B87 hardness for dependable performance in harsh environments. Engineered to ASME B18.21.1 specifications with precise 0.766" ID for 3/4" screws, this washer ensures proper fit and function in industrial fastening systems where reliability is paramount. The combination of material properties and mechanical design addresses common maintenance challenges by reducing the need for frequent retightening and component replacement.

Specification Summary & Compliance

This split lock washer features inch system dimensions with 0.766" internal diameter, 1.265" outer diameter, and 0.188" thickness, manufactured to ASME B18.21.1 standards for dimensional accuracy and performance. The washer demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for industrial applications worldwide. The specified Rockwell B87 hardness confirms consistent material properties meeting engineering requirements for reliable fastening performance.